Did I Blow My Amps???

I posted this question last night and got a response, but i wanted to repost this again to get some more info.

I have two Crate Cabs and a Crate Head which i've only had for about a month. I hook them up to a Jekyll and Hyde Pedal and only use the clean option on the head but for some reason the sounds that come out of the cabs are really deep, when i play single notes it sounds fine but when i play power chords or chords i get deep sounds and not some good distorted sounds. It might just be me but for some reason i don't really think the cabs sound like they used to..